Level 2: Inputs other than quoted prices that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active.

The estimated fair value of cash equivalents, restricted cash, accounts receivable and accounts payable approximates their carrying amount due to their short-term nature. The estimated fair value of our long-term debt and capital lease obligations approximates their carrying value based upon our expected borrowing rate for debt with similar remaining maturities and comparable risk. As of September 30, 2018,the interest rate swap agreement wasthe only financial instrument measured at estimated fair value on a recurring basis based on valuation reports provided by counterparties, which are classified as level 2 inputs.

The entire disclosure for financial instruments. This disclosure includes, but is not limited to, fair value measurements of short and long term marketable securities, international currencies forward contracts, and auction rate securities. Financial instruments may include hedging and non-hedging currency exchange instruments, derivatives, securitizations and securities available for sale at fair value. Also included are investment results, realized and unrealized gains and losses as well as impairments and risk management disclosures.